If selecting different datum, the corresponding results of velocity analysis and stack are different too.

如果选择不同的基准面，相应的速度分析和叠加结果也会不同。

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This thesis is about the research of stack velocity analysis and singularity detection.

本文的主要研究工作就是叠加速度分析和奇异性检测。

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Considering the properties of low stack folds, shallow objected layers and big background noise of shallow seismic data, the parameters selection for velocity analysis is studied in the paper.

针对浅层地震资料目的层较浅、叠加次数少和城市背景干扰大等特点，文中对速度分析的参数选取问题进行了研究。

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